1031213121030 has 48 divisors (see below), whose sum is σ = 2683283999760. Its totient is φ = 274771715904.

The previous prime is 1031213121023. The next prime is 1031213121079. The reversal of 1031213121030 is 301213121301.

1031213121030 is a `hidden beast` number, since 1 + 0 + 312 + 1 + 312 + 10 + 30 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1031213120994 and 1031213121012.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4437097 + ... + 4663716.

It is an arithmetic number, because the mean of its divisors is an integer number (55901749995).

Almost surely, 2^{1031213121030} is an apocalyptic number.

1031213121030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1031213121030 is an abundant number, since it is smaller than the sum of its proper divisors (1652070878730).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1031213121030 is a wasteful number, since it uses less digits than its factorization.

1031213121030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9102085 (or 9102082 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 1031213121030 its reverse (301213121301), we get a palindrome (1332426242331).

The spelling of 1031213121030 in words is "one trillion, thirty-one billion, two hundred thirteen million, one hundred twenty-one thousand, thirty".